Adrianna Horton, 12, of Golden City, Mo., was last seen getting into a vehicle on evening of Aug. 19, 2013.

KOLR-TV

(CBS) GOLDEN CITY, Mo --Crews searching for missing Missouri girl Adriaunna Horton have discovered an unidentified body, reports CBS affiliate KOLR. Crews have been told to call off their search for the 12-year-old, reports the station.

Horton was last seen Monday evening when authorities say she was seen getting into an SUV at Hazel Park in Golden City. Volunteers and officers from than a dozen agencies were called in to aid in the search, which spanned three days.

Around 2:30 p.m. Wednesday, crews zeroed in on a patch of dirt just west of Golden City, reports the station. Investigators reportedly said they located jewelry next to the location.

Bobby Bourne, 34, of Lockwood, was jailed Tuesday night in connection with the girl's disappearance. He was ordered held in lieu of $1 million bond, KOLR reports.

Bourne was taken into custody after being found driving an Expedition that witnesses said matched the description of the truck that had picked up Horton about 90 minutes earlier.

The girl reportedly visited the park daily with her sisters and friends.

Adriaunna's family has been called to the local church to identify the body, reports the station. Bourne, 34, reportedly knows the Horton family and had worked with Adriaunna's father, James, on a construction project.

At a vigil held Tuesday night for the missing 12-year-old, her uncle said he is still hopeful she is alive, but fears the worst, the station reports.